iv had issues for a while now, iv tried to update the engine and prorammes, left it running overnight, tried to uninstall avast, but for some unknown reason my pc wont allow me to do this, can anyone please give me ideas on how to sort it out
(sorry for posting in wrong place earlier) :-\
see instructions here >> https://forum.avast.com/index.php?topic=53253.0
scoll down to second picture > Farbar Recovery Scan Tool < run as instructed and attach the two diagnostic logs
See below the box you write in > Attachments and other options
Have you tried doing a repair of Avast ???
Control Panel> Program and Features (Add/remove program)>Select Avast> Select Repair. Reboot when completed
https://www.avast.com/faq.php?article=AVKB204
Thanks Pondus i will try what you suggest tomorrow, and let you know how it goes 
bob3160 i have tried that but it says, “unable to repair” but grateful for your input and help
The logs Pondus suggested will allow someone to check for probable conflicts.